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Best Trails

Boulder, CO

Royal Arch Trail is a 3.2 mile out and back trail located near Boulder, Colorado that features beautiful wild flowers and is rated as difficult. The trail is primarily used for hiking, mountain biking, trail running & walking and is accessible from May until November. Dogs and horses are also able to use this trail.

I ended up here when using the all trails app directions to get to bitter bush. turned out to be a happy accident. took the sleepy lion trail out and back instead of doing the loop on the road. good variety of scenery and landscape and a good work out too. I didn't have trouble following the trail but others did. keep your eyes peeled for the markers and you should be fine.

The trail is open and easily accessible. It gets fairly steep in sections. We went a month ago and it was very lush with all kinds of shrubbery and beautiful flowers including columbines. Amazing views from the top, where you can take your shoes off and cool your feet on the slab of rock. Due to the steepness it was a somewhat difficult hike back down. Never saw anyone on the trail. Will likely go back one day.

Beautiful views and not too difficult. Lost a star because it was difficult to follow the trail about halfway through the Sleepy Lion Trail section -- expect to spend some time doubling back here and there.